Liquids A and B form ideal solution over the entire range of composition. At temperature T,equimolar binary solution of liquids A and B has vapor pressure 45 Torr. At the same temperature, a new solution of A and B having mole fractions xA and xB , respectively, has vapor pressure of 22.5 Torr. The value of xA/xB in the new solution is (given that the vapor pressure of pure liquid A is 20 Torr at temperature T)
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
answer is 19.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
45=PA0×12+PB0×12PA0+PB0=90…….(1) given PA0=20 tor 7PB0=70 torr ⇒22.5 tor =20xA+701−xA=70−50xAxA=70−22.550=0.95xB=0.05 So xAxB=0.950.05=19